Set of key buttons for a handset



FIG. 1 is a front view of a a set of key buttons for a handset showingmy new design; and,

FIG. 2 is a perspective front view thereof.

The broken lines showing the remainder of the handset is forillustrative purposes only and forms no part of the claimed design.

The ornamental design for a set of key buttons for a handset, as shownand described.